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Groups > linux.kernel > #1491922
| From | Arnaldo Carvalho de Melo <acme@kernel.org> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | using SDT events |
| Date | 2016-09-27 16:00 +0200 |
| Message-ID | <sm15o-1KC-25@gated-at.bofh.it> (permalink) |
| Organization | linux.* mail to news gateway |
Masami,
Testing something else (event aliases/JSON) I saw the many sdt
events available via 'perf list', decided to use the usual workflow,
failed, what am I doing wrong?
[root@jouet ~]# perf list sdt_qemu:pci*
List of pre-defined events (to be used in -e):
sdt_qemu:pci_cfg_read [SDT event]
sdt_qemu:pci_cfg_write [SDT event]
sdt_qemu:pci_update_mappings_add [SDT event]
sdt_qemu:pci_update_mappings_del [SDT event]
[root@jouet ~]# perf record -e sdt_qemu:pci* -a
event syntax error: 'sdt_qemu:pci*'
\___ unknown tracepoint
Error: File /sys/kernel/debug/tracing/events/sdt_qemu/pci* not found.
Hint: Perhaps this kernel misses some CONFIG_ setting to enable this
feature?.
Run 'perf list' for a list of valid events
Usage: perf record [<options>] [<command>]
or: perf record [<options>] -- <command> [<options>]
-e, --event <event> event selector. use 'perf list' to list
available events
[root@jouet ~]#
Back to linux.kernel | Previous | Next — Next in thread | Find similar | Unroll thread
using SDT events Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-09-27 16:00 +0200
Re: using SDT events Masami Hiramatsu <mhiramat@kernel.org> - 2016-09-27 20:50 +0200
Re: using SDT events Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-09-28 15:40 +0200
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